Intelligent maintenance-free respirator for transformer and monitoring control method

Abstract

The invention discloses an intelligent maintenance-free respirator for a transformer and a monitoring control method, and belongs to the technical field of transformer systems.The intelligent maintenance-free respirator comprises a respirator body and a built-in module, and the respirator body is internally provided with a moisture absorption material, a heater, a filtering device and a simulated breathing lamp; the built-in module comprises a sensor module, a controller module, a data storage module, a data analysis module and a network communication module, the moisture absorption material is colorless renewable silica gel, and the heater is located in the middle of the moisture absorption material. Through a renewable moisture absorption material and an intelligent control drying technology, the maintenance-free period of the equipment is greatly prolonged, the direct cost caused by manual inspection, silica gel replacement and power failure operation is reduced, meanwhile, the environmental burden of waste silica gel treatment is reduced, the breathing frequency, pressure, temperature and humidity of the transformer are monitored in real time through the sensor module, and the transformer quality is improved. A breathing lamp is arranged to reflect the breathing state of the transformer in real time so as to perceive the operation state of equipment.

Description

Technical Field

[0001] This invention belongs to the field of transformer system technology, specifically a transformer intelligent maintenance-free breather and monitoring and control method. Background Technology

[0002] In the traditional operation of transformers, the breather is a key auxiliary device, mainly used to balance the pressure fluctuations in the transformer oil conservator caused by changes in oil temperature, and to prevent external moisture and impurities from entering the transformer, thereby ensuring the safe and stable operation of the transformer.

[0003] Traditional respirators are currently filled with blue silica gel, and the saturation level is determined manually by observing the color. Once saturated, the silica gel turns orange-red, and it must be replaced promptly to prevent adverse effects. Regular silica gel replacement is time-consuming and labor-intensive, and improper disposal of waste silica gel pollutes the environment. Traditional respirators often experience blockages in the silica gel chamber due to oil being carried into the oil reservoir during inhalation and adhering to the bottom silica gel. In severe cases, this can cause increased pressure within the oil reservoir, triggering the gas relay and other serious consequences. Furthermore, each silica gel replacement requires requesting a power outage from dispatchers, consuming significant time and manpower. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent maintenance-free transformer breather and monitoring and control method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a respirator body and a built-in module. The respirator body contains a moisture-absorbing material, a heater, a filter, and a simulated breathing light. The built-in module includes a sensor module, a controller module, a data storage module, a data analysis module, and a network communication module. The moisture-absorbing material is colorless, recyclable silica gel. The heater is located in the middle of the moisture-absorbing material. The filter includes a two-stage filter and is located at the bottom of the respirator body. The sensor module includes a breathing sensor, a temperature and humidity sensor, and a pressure sensor. The controller module is electrically connected to the heater. The data analysis module transmits the respirator's operational status signals to a monitoring host in real time via a communication network. As a further preferred embodiment of this technical solution: the outer shell of the respirator body is made of transparent material, the top of the respirator body is provided with a flange, and the filter device is detachable; As a further preferred embodiment of this technical solution: the sensor module is located above the moisture-absorbing material, the controller module controls the heater's on / off state, power, and heating time, and the communication network includes Ethernet and wireless networks; As a further preferred embodiment of this technical solution, the following steps are included: Data acquisition: The transformer's breathing frequency, pressure, temperature, and humidity parameters are collected through the sensor module; Data analysis and judgment: The collected data is analyzed in real time, and the system automatically determines whether the silicone needs to be heated and dried based on preset thresholds; Heating and drying: When the humidity exceeds the set value and the transformer is in the exhalation state, the moisture-absorbing material is saturated with moisture. The controller module precisely controls the start-up and power adjustment of the heater. When the temperature exceeds the set value, the heating is automatically stopped. Status monitoring and alarm: Set the normal range values ​​for respiratory parameters. When the real-time data exceeds the alarm value, the monitoring system will immediately issue an alarm. As a further preferred embodiment of this technical solution, it also includes remote monitoring and management: establishing a monitoring and control platform to intuitively display real-time data and view and analyze historical data. The monitoring and control platform also has remote control functions, allowing maintenance personnel to remotely start and stop the heating and drying operations of the respirator through the platform, thereby realizing remote monitoring and management. As a further preferred embodiment of this technical solution: the sensor module includes sensors with self-calibration and self-diagnosis functions, which can periodically calibrate and test themselves, and employ anti-interference technology during data acquisition. As a further preferred embodiment of this technical solution: In the data analysis and judgment process, the controller module predicts the moisture absorption of silica gel in advance based on historical data and trend analysis. During the data analysis process, multiple factors such as ambient temperature, humidity, and transformer load are considered. As a further preferred embodiment of this technical solution: in the initial stage of the heating and drying process, a power of 200-500w is used for rapid heating to quickly remove the moisture from the silica gel; in the later stage of heating, a power of 50-200w is used for slow heating. As a further preferred embodiment of this technical solution: the alarm methods in the status monitoring and alarm system include sound alarm, SMS alarm, and email alarm. The monitoring system classifies alarms according to their severity. For severe alarms, the system immediately notifies the maintenance personnel for handling; for general alarms, they can be recorded and handled by the maintenance personnel when they have time. As a further preferred embodiment of this technical solution: In remote monitoring and management, maintenance personnel can log in to the monitoring and control platform via computer or mobile terminal device. The monitoring and control platform provides data analysis functions and generates charts. The monitoring and control platform also has remote control functions, allowing maintenance personnel to remotely start and stop the heating and drying operations of the respirator through the monitoring and control platform.

[0006] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes renewable moisture-absorbing materials and intelligent control drying technology to significantly extend the maintenance-free cycle of the equipment, reducing the direct costs associated with manual inspections, silica gel replacement, and power outages. It also reduces the environmental burden of waste silica gel disposal. Furthermore, it uses a sensor module to monitor the transformer's breathing frequency, pressure, temperature, and humidity in real time, and is equipped with a breathing light to reflect the transformer's breathing status in real time, thereby sensing the equipment's operating status.

[0007] 2. This invention can determine the moisture saturation of silica gel and automatically start the regeneration process without manual replacement, avoiding equipment operation risks caused by operation delays or misjudgments. At the same time, the safety protection mechanism can actively avoid hidden dangers such as poor breathing and high temperature aging, significantly improving the reliability and safety of transformer operation, and is suitable for the high availability requirements of new energy power plants. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of an intelligent maintenance-free transformer breather according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an intelligent maintenance-free transformer breather according to the present invention. Figure 2 ; Figure 3 This is a flowchart of a transformer intelligent maintenance-free breather monitoring and control method according to the present invention.

[0009] Legend: 1. Respirator body; 101. Moisture-absorbing material; 102. Heater; 103. Filter device; 104. Simulated breathing light; 2. Built-in modules; 201. Sensor module; 202. Controller module; 203. Data storage module; 204. Data analysis module; 205. Network communication module. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Example 1: Please see Figure 1 - Figure 2As shown, this invention provides a transformer intelligent maintenance-free respirator; it includes a respirator body 1 and a built-in module 2. The respirator body 1 contains a moisture-absorbing material 101, a heater 102, a filter device 103, and a simulated breathing light 104. The built-in module 2 includes a sensor module 201, a controller module 202, a data storage module 203, a data analysis module 204, and a network communication module 205. The moisture-absorbing material 101 is colorless recyclable silica gel. Colorless recyclable silica gel does not require color changes to determine moisture saturation; its moisture absorption status can be monitored in real time by an intelligent monitoring system. The heater 102 is located in the middle of the moisture-absorbing material 101. After the recyclable silica gel becomes saturated with moisture, it can be restored to its adsorption state by heating and drying. The respirator has the capability to be recycled. The power and heating time of the heater 102 can be adjusted according to the actual situation to ensure that the silicone is fully dried while avoiding overheating that would cause the silicone to deteriorate. The filter device 103 includes two-stage filters and is located at the bottom of the respirator body 1. The sensor module 201 includes a breathing sensor, a temperature and humidity sensor, and a pressure sensor. The controller module 202 is electrically connected to the heater 102. The data analysis module 204 transmits the status signal of the respirator in operation to the monitoring host in real time through the communication network. The brightness, color, and flashing frequency of the simulated breathing light 104 can be adjusted according to the breathing frequency and pressure changes of the transformer to more accurately reflect the operating status of the transformer. In this embodiment, specifically: the outer shell of the respirator body 1 is made of transparent material, the top of the respirator body 1 is provided with a flange, the filter device 103 is detachable and can be installed. The filter device 103 effectively prevents dust and impurities from entering the transformer, protects the insulation performance of the transformer, and extends the service life of the transformer. In this embodiment, specifically: the sensor module 201 is located above the moisture-absorbing material 101, the controller module 202 controls the opening and closing, power and heating time of the heater 102, the communication network includes Ethernet and wireless network, the breathing sensor can accurately sense the breathing movement of the transformer and convert the breathing frequency signal into an electrical signal output, the temperature and humidity sensor can monitor the temperature and humidity inside the respirator in real time and provide a basis for the control of the heater 102, and the pressure sensor can monitor the air pressure change in the oil tank and detect abnormal air pressure in a timely manner. It should be noted that the device is equipped with a large-capacity, high-speed data storage device. By analyzing the changes in the pressure curve, it is possible to determine whether there is a problem with the transformer leaking air. By analyzing the changes in the humidity curve, it is possible to understand the moisture absorption and drying effect of the silica gel.

[0012] Example 2: Please see Figure 3 As shown, the present invention provides a monitoring and control method for a transformer intelligent maintenance-free breather, comprising the following steps: Data acquisition: The transformer's breathing frequency, pressure, temperature, and humidity parameters are collected via sensor module 201; Data analysis and judgment: The collected data is analyzed in real time, and the system automatically determines whether the silicone needs to be heated and dried based on preset thresholds; Heating and drying: When the humidity exceeds the set value and the transformer is in the exhalation state, the moisture-absorbing material 101 is saturated with moisture. The controller module 202 precisely controls the start-up and power adjustment of the heater 102. When the temperature exceeds the set value, the heating is automatically stopped. Status monitoring and alarm: Set the normal range values ​​for respiratory parameters. When the real-time data exceeds the alarm value, the monitoring system will immediately issue an alarm. In this embodiment, specifically: it also includes remote monitoring and management: establishing a monitoring and control platform to intuitively display real-time data and view and analyze historical data. The monitoring and control platform also has remote control functions, and maintenance personnel can remotely start and stop the heating and drying operations of the respirator through the platform to realize remote monitoring and management. In this embodiment, specifically: the sensor module 201 includes a sensor with self-calibration and self-diagnosis functions, which can periodically calibrate and test itself, and adopt anti-interference technology during data acquisition. The sub-modules in the sensor module 201 also have self-calibration and self-diagnosis functions, and periodically calibrate and test themselves to ensure measurement accuracy and stability. In this embodiment, specifically: the controller module 202 predicts the moisture absorption of silica gel in advance based on historical data and trend analysis during data analysis and judgment. During the data analysis process, multiple factors such as ambient temperature, humidity, and transformer load are considered. In this embodiment, specifically: the heater 102 adopts intelligent control technology, which can automatically adjust the heating power according to the moisture absorption degree and drying requirements of the silicone. In the initial stage of the heating and drying process, a power of 200-500w is used for rapid heating to quickly remove the moisture in the silicone. In the later stage of heating, a power of 20-200w is used for slow heating. In this embodiment, the alarm methods in the status monitoring and alarm system include sound alarm, SMS alarm, and email alarm. The monitoring system classifies alarms according to their severity. For serious alarms, maintenance personnel are notified immediately for handling. For general alarms, they can be recorded and handled by maintenance personnel when they have time. Through the status monitoring and alarm function, abnormal situations such as whether the transformer needs maintenance can be judged and analyzed in advance, and timely measures can be taken to deal with them. In this embodiment, specifically: during remote monitoring and management, maintenance personnel can log in to the monitoring and control platform via computer or mobile terminal device. The monitoring and control platform provides data analysis functions and generates charts. The monitoring and control platform also has remote control functions, allowing maintenance personnel to remotely start and stop the heating and drying operation of the respirator through the monitoring and control platform. This facilitates in-depth analysis of the transformer's operating status and improves maintenance efficiency.

[0013] Working principle or structural principle: The built-in module 2 and the simulated breathing light 104 are correctly installed inside the respirator body 1. A heater 102 is installed inside the respirator body 1 and the power line is connected. The respirator body 1 is connected to the monitoring host via Ethernet or wireless network on site. Then, debugging and trial operation are carried out. Based on the collected temperature and humidity data, the system automatically determines whether it needs to heat and dry the silica gel. When the set temperature and humidity values ​​are reached, the silica gel drying program is started to dry and heat the silica gel, remove moisture, and restore its adsorption capacity, achieving automated and maintenance-free functions. Maintenance personnel can log in to the intelligent monitoring and control platform through a computer or mobile device to view real-time data of parameters such as transformer breathing frequency, pressure, temperature and humidity of the respirator on the platform page. The platform should display real-time data in the form of charts and numbers to facilitate maintenance personnel to quickly understand the equipment's operating status. At the same time, the platform should also provide a data refresh function to ensure the timeliness and accuracy of real-time data. Through the historical data analysis function provided by the platform, the historical operating data of the respirator can be viewed to analyze the transformer's operating status and deterioration trend. When the platform issues an alarm message, the maintenance personnel should promptly view the alarm message content and take corresponding measures according to the alarm type.

[0014] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A transformer intelligent maintenance-free breather, characterized in that, The device includes a respirator body (1) and a built-in module (2). The respirator body (1) contains a moisture-absorbing material (101), a heater (102), a filter (103), and a simulated breathing light (104). The built-in module (2) includes a sensor module (201), a controller module (202), a data storage module (203), a data analysis module (204), and a network communication module (205). The moisture-absorbing material (101) is colorless and recyclable silica gel. The heater (102) is located in the middle of the moisture-absorbing material (101). The filter (103) includes two-stage filters and is located at the bottom of the respirator body (1). The sensor module (201) includes a breathing sensor, a temperature and humidity sensor, and a pressure sensor. The controller module (202) is electrically connected to the heater (102). The data analysis module (204) transmits the status signal of the respirator in operation to the monitoring host in real time through the communication network.

2. The intelligent maintenance-free transformer breather according to claim 1, characterized in that, The outer shell of the respirator body (1) is made of transparent material, the top of the respirator body (1) is provided with a flange, and the filter device (103) is detachable.

3. The intelligent maintenance-free transformer breather according to claim 2, characterized in that, The sensor module (201) is located above the moisture-absorbing material (101), the controller module (202) controls the opening and closing, power and heating time of the heater (102), and the communication network includes Ethernet and wireless network.

4. The monitoring and control method for a transformer intelligent maintenance-free breather according to claims 1-3, characterized in that, Includes the following steps: Includes the following steps: Data acquisition: Transformer breathing frequency, pressure, temperature and humidity parameters are acquired through sensor module (201); Data analysis and judgment: The collected data is analyzed in real time, and the system automatically determines whether the silicone needs to be heated and dried based on preset thresholds; Heating and drying: When the humidity exceeds the set value and the transformer is in the exhalation state, the moisture-absorbing material (101) is saturated with moisture. The controller module (202) precisely controls the start-up and power adjustment of the heater (102). When the temperature exceeds the set value, the heating is automatically stopped. Status monitoring and alarm: Set the normal range values ​​for respiratory parameters. When the real-time data exceeds the alarm value, the monitoring system will immediately issue an alarm.

5. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 4, characterized in that, It also includes remote monitoring and management: establishing a monitoring and control platform to intuitively display real-time data and view and analyze historical data. The monitoring and control platform also has remote control functions, allowing maintenance personnel to remotely start and stop the heating and drying operations of the respirator through the platform, thus realizing remote monitoring and management.

6. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 5, characterized in that, The sensor module (201) includes sensors with self-calibration and self-diagnosis functions, which can periodically calibrate and test themselves, and use anti-interference technology during data acquisition.

7. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 6, characterized in that, In the data analysis and judgment process, the controller module (202) predicts the moisture absorption of silica gel in advance based on historical data and trend analysis. During the data analysis process, multiple factors such as ambient temperature, humidity, and transformer load are considered.

8. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 7, characterized in that, In the initial stage of the heating and drying process, a power of 200-500W is used for rapid heating to quickly remove moisture from the silica gel. In the later stage of heating, a power of 50-200W is used for slow heating.

9. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 8, characterized in that, The status monitoring and alarm system employs sound alarms, SMS alarms, and email alarms. The monitoring system classifies alarms according to their severity. For severe alarms, maintenance personnel are immediately notified for handling; for general alarms, they can be recorded and handled by maintenance personnel when they have time.

10. The monitoring and control method for a transformer intelligent maintenance-free breather according to claim 9, characterized in that, In remote monitoring and management, maintenance personnel can log in to the monitoring and control platform via computer or mobile terminal device. The monitoring and control platform provides data analysis functions and generates charts. The monitoring and control platform also has remote control functions, allowing maintenance personnel to remotely start and stop the heating and drying operations of the respirator through the monitoring and control platform.

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